Intimacy [for a guy]

[MrDiarrhea]

The ultimate expression of tenderness is willingly touching a girl's shit. It's similar to wiping the snot from your girl's nose when she's crying, only to the extreme.

(PC: Of course it applies to the other sex, too, if you're a straight woman or a gay male.)

[Narada]

I think it's far more intimate if you clean your girlfriend's ass crack with your tongue after she's just had a massive shit.